The family of a Chinese researcher who vanished in Illinois is appealing to the public for help. Surveillance video from June shows Yingying Zhang getting into graduate student Brendt Christensen's car on the day she disappeared. Christensen has been charged with her kidnapping. Anna Werner reports.

More videos

Life at the US-Mexico Border
CCTV+ 19 Feb 2018 11:48 CET

Life at the US-Mexico Border